body,
html {
  position: relative;
  min-width: 320px;
  max-width: 750px;
  height: 100vh;
  margin: 0 auto;
  /* box-sizing: border-box; */
  /* overflow: hidden; */
  /* overflow-y: scroll; */
  background-color: #f6f6f6;
}
*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
/* body::-webkit-scrollbar { width: 0 !important } */
.red{
  color: red;
}
.padding_10{
  padding: 0 .1rem;
}
.padding_80{
  padding-left: .8rem;
}